[TNL-6022] Added SR-only keyboard help button to the front of the problem.
[TNL-6022] Added SR-only keyboard help button to the front of the problem.

edx-solutions/xblock-drag-and-drop-v2,edx-solutions/xblock-drag-and-drop-v2,edx-solutions/xblock-drag-and-drop-v2,edx-solutions/xblock-drag-and-drop-v2